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Subject: Re: One mate to solve.

Author: Tim Foden

Date: 02:20:35 06/02/02

Go up one level in this thread


On June 01, 2002 at 08:45:35, leonid wrote:

>[D]Kn4QQ/RNQQQQQ1/nqrqqp2/qNRQq3/kBBp4/rbq5/Pb6/q7 w - -
>
>Please indicate your result.

GLC 2.18, 24MB Hash, AXP 1.46GHz, finds that Bxb3+ is a mate in 10 after 21.04
seconds.

Cheers, Tim.

~~~~~~~~~~~~~~~

Analysis follows below:

>anal
 Game stage: Opening
 Current eval: 9.473
 Ply  Time   Score   Nodes  Principal Variation
  2   0.05 +25.637    7457  Nxc3+ dxc3 2. Qcxd6 Nxd7 3. Nxa5 Rxd6 4. Qdxe6
  2   0.06 +25.637    8103  Nxc3+ dxc3 2. Qcxd6 Nxd7 3. Nxa5 Rxd6 4. Qdxe6
  3   0.12 +25.237   32190  Nxc3+ Kxb4 2. Nxd6 Nxd7 {--}
  3   0.15 +20.078   52989  Nxc3+ Kxb4 2. Qxb6+ Rxb6 3. Nxd6 Qxf7 4. Nxf7 Nxd7
                              5. Nxe5 Naxc5
  3   0.20 +25.093   76241  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Qxb6 Qxb4 4. N7xd6 Nxd7
                              5. Qfxe6 Qxd5
  3   0.22 +25.093   79504  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Qxb6 Qxb4 4. N7xd6 Nxd7
                              5. Qfxe6 Qxd5
  4   0.22 +25.493   85450  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Qxb3+ Kxb3 4. Nxa5+
                              Qaxa5 5. Qcxd6 {++}
  4   0.30 +31.048  149230  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ dxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Qexd6+ Q5xd6 7. Nxd6 Nxd7 8.
                              Qfxe6
  4   0.32 +31.048  159472  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ dxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Qexd6+ Q5xd6 7. Nxd6 Nxd7 8.
                              Qfxe6
  5   0.34 +31.448  169340  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ dxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Qexd6+ Q5xd6 7. Q5xd6+ Qxd6 8.
                              Qxd6+ Nc5 9. Rxa1 {++}
  5   0.85 +36.093  626421  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qd7xd6+ Qc5 6. Q5xc5+ Nxc5 7. Ra4+ Qxa4 8.
                              Rxa4+
  5   0.95 +36.093  706806  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qd7xd6+ Qc5 6. Q5xc5+ Nxc5 7. Ra4+ Qxa4 8.
                              Rxa4+
  6   1.08 +36.493  803776  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Qd7xd6+ Rxd6 7. Qexd6+ Q6xd6 8.
                              Qc4+ Rxc4 {ht} {++}
  6   4.84 +52.118 4084517  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Qexd6+ Rc5 7. Qxb6+ Kc3 8. Rxc5+
                              Nxc5 9. Qbxc5+ Kd2 10. Qd7xe6 Qxe6 11. Qdxe6
  6   6.31 +52.118 5393956  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Qexd6+ Rc5 7. Qxb6+ Kc3 8. Rxc5+
                              Nxc5 9. Qbxc5+ Kd2 10. Qd7xe6 Qxe6 11. Qdxe6
  7   6.51 +52.518 5583896  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Rxd6 8. Ra5+
                              Kb4 {ht} {++}
  7  21.04 +Mate10  23435k  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
                              Q7xd6+ Rxd6 9. Ra5+ Kb4 {ht}
  7  32.88 +Mate10  37362k  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
                              Q7xd6+ Rxd6 9. Ra5+ Kb4 {ht}
  8   2:24 +Mate10 189975k  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
                              Q7xd6+ Rxd6 9. Ra5+ Kb4 10. Qb5# {ht}
  8   3:56 +Mate10 306338k  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
                              Q7xd6+ Rxd6 9. Ra5+ Kb4 10. Qb5# {ht}
  9  12:35 +Mate10   1084m  Bxb3+ Qxb3 2. axb3+ Rxb3 3. Nc3+ Rxc3 4. Rxa5+ Kxb4
                              5. Qxb6+ Rxb6 6. Rb5+ Ka3 7. Qexd6+ Q5xd6 8.
                              Q7xd6+ Rxd6 9. Ra5+ Kb4 10. Qb5# {ht}



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